Teat cup



Feb, 20, 19,23.

' A. V. HlNMAN.

TEAT CUP.

FILED MAR. 12, 1919.

Ult-litigi ARTHIIR V. EIL'NIVIAN,

Application led March l2, 1919.

0F ONEIDA, NEVI YORK, ASSIGNOR TO IEACHINE OOMPANY, OF ONEIDA, lXlElliria a THE HINLVIAN MILKING YORK, A CORPORATION OF NEW YORK.

THAT CUP.

Be it known that I, ARTHUR V. HINMAN,

of Oneida, in the co State of New York,

the following,

exact description.

This invention relates t unty of htlad ison, in the have invented newand useful Improvements in rieat Cups, of which taken in c accompanyingdrawings,

onnection with the 4is a iull, clear, and

o certain improvements in teat cups such as are used in connection withmachines for milking cows.

YVith the usual commercial teat cup withthe cup causesa matedrawal otair trom rial relative movement betwee teat. The suction down into thecup discomfort, and

n the cup and draws the teat so far as to cause the milking operation.

No one so iar as produced a teat applies a. gripping the teat,preventing up toward the udder.

applied at the base of relative movement of the present cups whereaswith throughout its longe ultimately applied" to the to draw down intoteat causing it as st the cup. The

primary object of therefore, to produce a te new method or' operation inof milking, whereby the drawn from the teats of the l am awar the animaldecreases the eiiiciency of e, has ever cup by which the suctionpressure at the base of the cup fro r porti lower ated milk anim

mv drawing` lThe pressure being the teat prevents teat and teat cupgripping the teat on the suction is end of the the invention is, at cuphaving a the performance is rapidly al with less discomfort to theanimal and more etliciently than with known teat cup.

Th more rapidly and w animal by the appli sure solely to t and when thatthe relative position e milking operat ion is accomplished ithoutdiscomfort to the cation of ma he upper portion of part of the teat ofthe teat a terial presthe teat, is gripped, iid teat cup during thatportion 0i the pulsation is established.

It has been teat cups with internally arranged distinguished from suchinvention operates to ac ing operation in an entirely dii'l' in that thecollapsible part upper end oi the cup and is lll' the a lower preferablygenerally a rigid ca customaryv to form sing supporting an collapsiblelining. As

rigid part.

cups the one of my complish the inilkerent manconstitutes carried by Sofaras I Serial No. 282,135.

am aware, l am the first to construct a teat cup having a collapsiblepart adapted' to grip the upper portion 0i" the teat While the lowerpart may remain tree and unconned by contacting parts, theuppercollapsible part determining the relative position of the parts whensuction is applied.

'taken in connection with the accompanying drawings in which Figure -l`is an elevation ot' a teat cup of my invention.

Figure `2- Figure -l`. Y

Figure -3` is a cross-section on line 3`3 Figure -lillustrating indotted .lines the manner in which the upper portion of the teat c pordinarily collapses.

Figure el` is an elevation partly in section of a slightly modified formof collapsible part.

Figure-5- is a .cross-section on line :5*5 Figure -4`- The illustrationof my invention set forth in the accompanying drawings discloses atapered metallic tube having its upper and larger end provided with aneX- ternal circular bead `2` adapted to be engaged by acircumferentially enlarged part `3- formed with an internal channellreceiving' the bead. The part -2` in this illustration is formed as aportion of a collapsible member `5` of substantially cylindrical formand provided with an inturned flange `G` at its upper end forming acentral opening' preferably of somewhat less diameter than the interiordiameter of member `5` which opening' the teat off the animal iS adaptedto be passed. The interior surface of member -5- may perhaps preferablyform a substantially s vmmetricaily continuation oi: the adjacentinterior surface ot' tube `l`. It is found in operation that the member`5 naturally collapses to form a three sided or somewhat triangularvertical chambei', the sides ot' which are vertically concave. Then thesuction is applied this part iminediatelv collapses and tightly gripsthe is a cross-section on line 2-2` mains free thereby avoiding orpreventing any material relative movement of the teat and teat cup.

The simplest and perhaps preferred form of collapsible member is shownin Figures -1-, Q- and -3-. That form shown in Figures 4land e5- differsin the fact that the member is provided in this instance with twodia-metrically opposite vertical ribs -7- and the flange at the upperend is of slightly different form. The operation of these members isfound to be substantially the same.

As descriptive of an exact construction of such member as shown inFigure e-1-, the entire member may be formed of rubber. The radialthickness of part r2- may be substantially 5/32 of an inch: the radialthickness of the cylindrical part 5- may be substantially l/BEZ of aninch: vertical thickness of flange -6 approximately 6/32 of an inch.These measurements are, however, susceptible of wide variation,theessential feature of my invention being the collapsible member at theupper end of a teat cup for gripping the upper portion of the teat.

Altho I have shown and described a specific construction of teat cup asillustrative of my invention, do not desire to limit myself to anyspecial construction, form, relative proportion or size of the parts orto an particular material from which the same shall be formed, as widevariations, modifications and changes may be made, while retaining theessentials of my invention and without departing` same as set forth inWhat I claim is:

1.- A teat cupi consisting' of a rigid tubular body and a-self-supporting flexible inwardly collapsing tubular portion positionedabove the rigid tubular body, and secured to the upper end of the same,and having` an in-. wardly extending circumferential iiange at its upperend.

2. A teat cup consisting of a rigid tubular body and a. self-supportingflexible inwardly collapsing relatively long tubular portion positionedabove the rigid tubular body, and of-'substantial uniform d'ameterthrough its projection above said body, and secured to the upper end ofthe same, and having an inwardly extending circumferential flange at itsupper end, and reinforcing ribs exfrom the scope of the the appendedclaims.

. tending longitudinally of said tubular portion. y

3. A teat cup consisting of a tubular body,

and a self-supporting flexible inwardly collapsing relatively longtubular portionpositioned above the rigid tubular body, and ofsubstantial uniform diameter throughout its projection bove said bodyand secured to the upper end of the said body, and having an inwardlyextending circumferential flange at its upper end.

ln witness whereof l have hereunto set my hand this first day of March1919.

` ARTHUR V. HINMAN.

Witnesses:

ENocH H. JoHNsoN, LiLLrAN R. BENTLEY.

